package servlet;

import pojo.Dept;
import service.impl.DeptServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;

@WebServlet(urlPatterns = "/dept")
public class DeptServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doPost(req, resp);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        DeptServiceImpl deptService = new DeptServiceImpl();
        req.setCharacterEncoding("UTF-8");
        String action = req.getParameter("action");
        if("dept".equals(action)){
         String name = req.getParameter("name");
         Dept condition = new Dept(name);
            List<Dept> depts = deptService.findAll(condition);


         //把数据放在请区域中
            req.setAttribute("depts",depts);
            req.setAttribute("condition",condition);
            req.getRequestDispatcher("/dept.jsp").forward(req, resp);

        }else if("delete".equals(action)){
            String sid = req.getParameter("id");
            int id = Integer.parseInt(sid);
            int result = deptService.deleteDeptById(id);
            if(result>0){
                req.getRequestDispatcher("dept?action=dept").forward(req, resp);

            }else {
                System.out.println("error");
            }
        }else if("add".equals(action)){
            String name = req.getParameter("name");
            int result = deptService.addDept(new Dept(name));
            if(result>0){

                resp.sendRedirect("dept?action=dept");

            }else {
                System.out.println("error");
            }
        }else if("toupdate".equals(action)){
            String sid = req.getParameter("id");
            int id = Integer.parseInt(sid);
            Dept dept = deptService.findDeptById(id);
            req.setAttribute("dept", dept);
            req.getRequestDispatcher("/updateDept.jsp").forward(req, resp);
        }else if("update".equals(action)){
            String sid = req.getParameter("id");
            int id = Integer.parseInt(sid);
            String name = req.getParameter("name");
            int result = deptService.updateDept(new Dept(id, name));
            if(result>0){

                resp.sendRedirect("dept?action=dept");

            }else {
                System.out.println("error");
            }

        }




    }
}
